Convertible tire.



R. WRIGHT.

CONVERTIBLE TIRE.

APPLIUATION FILED 1111.27, 1911 1,105,121 Patented July 28,1914.

UNITED STATES PATENT OFFICE.

ROBERT WRIGHT, CLEVELAND, OHIO.

CONVERTIBLE TIRE.

To all whom it may concern Be it known that I, ROBERT IVRIGIIT, a citizen of the United States, and resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Convertible Tires, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same. v

The objects of the invention are to provide a solid rubber tire and. metal rim therefor, suitable for attachment to an automobile wheel and attachable to the exterior of a pneumatic tire and adapted to serve as a protective tread and armor therefor, and

also attachable to awood or metal wheel its a complete tire and metal rim therefor.

The invention comprises also sectional hard rubber tire portions, provided with marginal extensions at their lower edges, adapted for insertion in clencher edges in the metal rim, adapted also in case of injury to a pneumatic tire, for insertion in the ordinary clencher rim of the pneumatic tire, in lieu of the injured tire.

The invention further includes the combination and arrangement of parts and theing drawings and specifically pointed out in the claim.

In the accompanying drawings Figure 1 is a side elevation of an automobile wheel showing a pneumatic tire, a metal protecting rim and a solid rubber tread therefor; Fig. 2 is an enlarged transverse section thereof; Fig. 2 is a transverse section showing the outer tire secured in the wheel rim; Fig. 3 is an enlarged side elevation of a portion thereof; Fig.4 is a transverse section showing the metal rim attached to a wooden felly; Fig. 5 is a perspective view of a solid rubber block forming aportion of the tread surface and attachable to the metal rim; Fig. 5 is'a 1o" gitudinal section. showing overlapping e'ir remities for S0l1(l rubber tread sections.

In these views A is a metal rim which can be made in semitubular form as shown in Figs. 2 and 3 to accommodate it to the curved tread surface of a pneumatic tire and it may extend as far as desired upon the sides of the tire to prevent injury thercto. The rim is preferably provided with Specification of Letters Fatent.

Application filed January 27, 1911.

Patented July 28, 1914. Serial No. 605,031.

transverse ridges B at intervals to prevent slipping upon the tire.

The metal rim may be attached to the tire in any. suitable manner as by straps C which pass through loops D'upon the metal sides.

Mounted in clencher edges B, B upon the metal rim is shown a solid rubber tire E. This may comprise a continuous rubber ring with clencher edges F, F adapted to enter the clencher edges D, D in the rim, or ma consist of a series of solid rubber blocks G, G having clencher edges F, F. To prevent slipping on the rim transverse ridges H, H on the outer face of the rim are employed which enter the rubber blocks and retain them in place.

Additional frictional contact is provided for the tread surface of the tire and blocks by the addition thereto of small integral ridges I, I arranged in both transverse and longitudinal rows or in any desired pattern, to prevent skidding of the wheel.

Chains J J may be passed around the solid rubber tire, and around the blocks to form a gripping means to increase traction where desired, and are detachably secured to hooks or other fastening'means on the sides of the metal rim. These chains'preferably pass through grooves K, K which may be formed between the sections, so that the chains lie slightly below the surface of the blocks and hence the greater the pressure the greater the traction of the Wheel will be. To'protectthe opening between the edges ofthe metal rim and the pneumatic tire an apron L is" passed over the opening and is secured to or is integral with the pneumatic tire near the rim sides at Lf.

Any suitable fastening devices for the edges of the apron can be employed as screws or pins Z on the'rim and nuts or other clamping means to hold the apron edges tightly down upon the rim.

In Fig. 2 the clencher edges upon the solid tire are shown sutliciently large for insertion in the clencher edges Y of the pneumatic tire rim. This proportion of parts greatly augments the usefulness of the solid tire since when the pneumatic tire becomes useless the solid tire can be attached to the clencher rim of the wheel and the wheel will be rendered as useful as before and thus prevent the total destruction of the pneuma tire. In this manner the outer tire vertible into a complete tire for the wheel. In Fig. 5 is shown asolid rubber block G, a series of which can be used 111131309 of a continuous solid rubber outer tire. This is provided with cleneher rims l and nonskidding ridges I as in the continuous outer tire. Y

Having described the invention what I claim as new and desire to secure by Letters Patent is:

The combination of a wheel telly, an inner clencher rim thereon, a pneumatic tire on the rim, a metallic outer rim member on the Copies of this patent may be obtained Ior five cents each, by addressing the Commissioner of Patents, Washlngtomb. G. 

